Japan scientists launch freeze-dry animal sperm bank
TOKYO (AFP) - Japanese scientists have launched a sperm bank for endangered animals that uses freeze-drying technology they hope could one day help humans recreate animal populations on other planets, the chief researcher said on Wednesday.
The team at Kyoto University's Institute of Laboratory Animals Graduate School of Medicine successfully preserved sperm taken from two endangered primates and a type of giraffe, associate professor Takehito Kaneko said.
They mixed the sperm with special preservation liquid and freeze-dried it in a way that allows them to store it at just 4 degrees Celsius, Prof Kaneko said.
The temperature is much higher - and less energy intensive - than conventional ways of storing sperm.